-module(gleeunit).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([main/0, run/2]).
-export_type([atom_/0, encoding/0, report_module_name/0, gleeunit_progress_option/0, eunit_option/0]).

-type atom_() :: any().

-type encoding() :: utf8.

-type report_module_name() :: gleeunit_progress.

-type gleeunit_progress_option() :: {colored, boolean()}.

-type eunit_option() :: verbose |
    no_tty |
    {report, {report_module_name(), list(gleeunit_progress_option())}}.

-spec find_matching_test_module_files(list(binary())) -> list(binary()).
find_matching_test_module_files(Test_module_files) ->
    _pipe = Test_module_files,
    _pipe@2 = gleam@list:filter(
        _pipe,
        fun(Module_name) ->
            begin
                _pipe@1 = Module_name,
                gleam@string:ends_with(_pipe@1, <<".gleam"/utf8>>)
            end
            =:= true
        end
    ),
    gleam@list:filter(
        _pipe@2,
        fun(Module_name@1) ->
            Absolute_module_file_name = <<<<(gleeunit_ffi:get_cwd_as_binary())/binary,
                    "/"/utf8>>/binary,
                Module_name@1/binary>>,
            _pipe@3 = filelib:is_regular(Absolute_module_file_name),
            gleam@function:tap(_pipe@3, fun(Exists) -> case Exists of
                        true ->
                            nil;

                        false ->
                            gleam@io:println_error(
                                <<"Error: Could not find "/utf8,
                                    Absolute_module_file_name/binary>>
                            )
                    end end)
        end
    ).

-spec gleam_to_erlang_module_name(binary()) -> binary().
gleam_to_erlang_module_name(Path) ->
    _pipe = Path,
    _pipe@1 = gleam@string:replace(_pipe, <<".gleam"/utf8>>, <<""/utf8>>),
    _pipe@2 = gleam@string:replace(_pipe@1, <<".erl"/utf8>>, <<""/utf8>>),
    gleam@string:replace(_pipe@2, <<"/"/utf8>>, <<"@"/utf8>>).

-spec detect_all_test_modules() -> list(binary()).
detect_all_test_modules() ->
    _pipe = gleeunit_ffi:find_files(
        <<"**/*.{erl,gleam}"/utf8>>,
        <<"test"/utf8>>
    ),
    gleam@list:map(
        _pipe,
        fun(Test_module_file_name) ->
            <<"test/"/utf8, Test_module_file_name/binary>>
        end
    ).

-spec run_suite(list(binary()), boolean()) -> nil.
run_suite(Test_module_files, Halts_on_error) ->
    Options = [verbose,
        no_tty,
        {report, {gleeunit_progress, [{colored, true}]}}],
    Result = begin
        _pipe = Test_module_files,
        _pipe@1 = gleam@list:map(
            _pipe,
            fun(Test_module_file) ->
                _assert_subject = gleam@string:split_once(
                    Test_module_file,
                    <<"test/"/utf8>>
                ),
                {ok, {_, Test_module_file@1}} = case _assert_subject of
                    {ok, {_, _}} -> _assert_subject;
                    _assert_fail ->
                        erlang:error(#{gleam_error => let_assert,
                                    message => <<"Assertion pattern match failed"/utf8>>,
                                    value => _assert_fail,
                                    module => <<"gleeunit"/utf8>>,
                                    function => <<"run_suite"/utf8>>,
                                    line => 47})
                end,
                Test_module_file@1
            end
        ),
        _pipe@2 = gleam@list:map(_pipe@1, fun gleam_to_erlang_module_name/1),
        _pipe@3 = gleam@list:map(
            _pipe@2,
            fun(_capture) -> erlang:binary_to_atom(_capture, utf8) end
        ),
        _pipe@4 = eunit:test(_pipe@3, Options),
        _pipe@5 = (gleam@dynamic:result(
            fun gleam@dynamic:dynamic/1,
            fun gleam@dynamic:dynamic/1
        ))(_pipe@4),
        gleam@result:unwrap(_pipe@5, {error, gleam@dynamic:from(nil)})
    end,
    Exit_code = case Result of
        {ok, _} ->
            0;

        {error, _} ->
            1
    end,
    case {Halts_on_error, Exit_code} of
        {true, Exit_code@1} ->
            erlang:halt(Exit_code@1);

        {false, 0} ->
            nil;

        {false, 1} ->
            nil;

        {false, Unhandled_exit_code} ->
            _pipe@6 = (<<"Unexpected Error Code: "/utf8,
                (gleam@int:to_string(Unhandled_exit_code))/binary>>),
            gleam@io:println_error(_pipe@6),
            nil
    end.

-spec main() -> nil.
main() ->
    _pipe = detect_all_test_modules(),
    run_suite(_pipe, true).

-spec run(list(binary()), boolean()) -> nil.
run(Test_module_files, Halts_on_error) ->
    _pipe = Test_module_files,
    _pipe@1 = find_matching_test_module_files(_pipe),
    run_suite(_pipe@1, Halts_on_error).